Gas-burner



M. c. AND LNH. sHuLER. .GAS BURNEH.-

APPLICATION FILED OCT. l0. |919.

Patented May 3, 1921.

.2 SHEETS-SHEET l.

@mi/limone 7 if; 53 j@ L2 ttouwgd M. C. AND E. H. SHULER.

GAS BURNER.

APPLICATION FILED ocT. Io, 191.9.

,$76,836. Patented May 3, 1921.

2 SHEETS-SHEET 2.

@Mmmoo Max cna/fer Jim/rr 1 This invention relates to 'UNITED STATES PATENT oFFlgcE-.f

MAX. c. SIIULER, or CHARLOTTE, AND EDWIN 1H, SIIULER, or LANSING, MICHIGAN.

Specilcatio'n of Letters Patent.

VGAS-BURNER.

Patented May 3, 192,1.

Application mea octbter' 10,11919. serial No. 329,758.

county of Ingham, State of Michigan, re

spectivel have invented certain new and useful m rovements' in Gas-Burners, of which the ollowing is a specification.

improvements in gas burners. Y I The main objects of this invention are:

First, to rovide an improved gas burner having a-pi ot, in whichvthe gas is automati- `15 cally' turned on when an object is placed upon the grid above the burner.

Second, to provide an improved gas burner having theseadvantages which may Vbe embodied in burners to be substituted. as

' 20 a unit for burners now commonly used in gas stoves, gas plates and the like. l

Third,l to provide an improved gasI burner having these advantages which is economilcal in structure, and one which is not likely urther objects, and. objects relating to structural details will definitely appearlv from the detailed description to follow.

We accomplish the objects of our inven- 30-tion by the devices and means described in the Jfollowingspecification. The invention is clear-lyp d eined and pointed out in 'the claims. Y y l A structure whichis a preferred embodiment of our invention is clearly illustrated in the accompanying Adrawing forming a part of this specification, inv'whichj Figure I is a plan view of a gas b urner embodying the features of In invention, a

I 1,10 portion of a stove top or gri being broken away as isl also the gas supply plpe.

Fig'. II is a'- detail view partially in vertical section on a line correspondin'gto line Y 2--2-of Figs. I, IV, Vv and VI', the parts .45'being shown intheir `normal position or with the main burner-l valve closed.

Fig. III is a detail vertical section corresponding to Fig. II, with a cooking uten- J Sil shown on thegrid, and the parts in their operated position or with the main burnel` valve open.

Fig. IV is a detail vertical section on a line corresponding to line 4.--4 of lFigs. lII and V, Showing structural details.

55 Fig.l V is a plan view ofthe burner head j ated -to open the main burner valve.

Fig. VI is a detail horizontal section on a line correspondingto the broken line 6 6 of Fig. II. l

In the drawing similar reference characlters referto similar parts throughout the,

IV, the operating member,l being sectioned.

several views, and the sectional views are vtaken looking inthe direction of the little arrows atthe ends of the section 1ines.`

Referring to the drawings, 1 represents the frame ofa gas stove or gas plate and 2 the grid or top thereof adapted to receive` the article to be heated such as a cooking utensil 3, shown conventionally in 'Fig III.

The main gas burner comprises the head 4 j having radiating arms 5, ythe head and arms being he burner has aV Bunsen tube l6 adapted to receive gas from the supply nozon the gas supplyvpipe 8. The tube 6 has air openings '9 controlled by the shutter 10 having air openings 11 therein.

The pilot burner 12 is mounted on .the

gas supply tube 13, the pilot burnerbeing dlsposed centrally'of themain burner. The

tube 13 is mounted for longitudinal reciprol eating movement within the Bunsen tube 6,

the outer end of the supply tube beingsupr .j

ported byvthe bridge or spider 14 at its outer end and being arranged through'the walls of the burner as clearly shown in Figs. II and III.l The nozzle has a' conical valve seat 15 while the member l13 is provided with a conical valvevl'coacting with this seatj to control v'the delivery of gas to the main burner. The member 13 has an opening 17 therein alined with the opening o the nozzle to receive `gas therefrom when the valve is open and also when closed, thus maintaining a constant ame at the pilot.

Aspring 18 is arranged on the member 13 to urge the valve to its seat, one end of the spring being seated against the wall of the burnerand the other engagingapin 19 on the tube.

A valve actuating member 20 is disposed vertically through an opening 21 in the ear Aon the grid, the actuating member is actu. ating member is. provided with a head 23 which normally projects above the. surface. of the grid sothat when an object is placed on the grid, the actuating member. 1s ac'rtliwio accomplish this, the actuating member is pII'ovided with a plurality of. jet ori-- I tations as required.'

provided with a cam 24 coacting with pinsy 25 on the member 13, so that when the actuating member is depressed, the member 13 is carried back to open the valve. The lower end of the actuating member is bifurcated to embrace themember 13, thus securing a balancing of parts. The actuat-y rom the burner body, the weight having anarm 30 engaging the lower end of the member 20 as Shown. As the member 20 is returned the spring 18l seats the valve and cuts oil' the main burner.

With this arrangement of parts, the opening and closing of the main burner is entirely automatic, and as a constant supply of gas is provided for the pilot, the main burner is automatically lighted when an object is placed upon the grid.

Our improved as tobesubstituted or burners now commonly in use. We have not attempted to illustrate or describe other modiications andv structural details which might be necessary or desirable to adapt our improvements to different stove or gas plate structures, as we believe the disclosure made will enable those skilled in the art to which this invention relates to make such modifications or adap- Having thus described our invention, -what we claim as new and desire to secure by Letters Patent is: f

1. In a structure of the class described, .the combination of. a grid, 'a mainV burner disposed below said grid and provided with a Bunsen tube and a nozzle delivering thereto and having a valve seat at its inner end,

.a pilot burner operatively associated with said main burner, a pilot burner supply tubel carrying said pilot burner and mounted to reciprocate longitudinally in said Bunsen tube and having a valve at its outer end `coacting with said valve seat in said nozzle to control the delivery of gas to the main burner and an inlet opening-registering with the nozzle opening when said valve' is closed permitting the passage 'of gas to the pilot burner, a valve actuating member mounted on said burner to reciprocate vertically and adapted to be actuated by an objectpl'aced on said grid, and a coiledy spring arran ed on said pilot supply tube. to urge said va ve to 'its seat, and a weight pivotally mounted 'on said burner for returning said actuating member to its initial positicn.

2. In a structure or the class described, the combmaticn burner is well adapted grid, a main burner dis osed below said grid and provided with a unsen tubeand a nozzle delivering thereto and having a valve seat at its lnner end,

a pilot burner operatively associated with` said main burner, a pilot burner supplyl tube carrying said ilot burner and mounted to reciprocate longltudinally insaid Bunsen tube and havin a valve at its outer end coacting with said valve seatinsaid nozzle to control theldelivery of gas to the main burner and anv inlet o ning registering with the nozzle opening w en said valve is closed permitting the passage of gas to the pilot burner, and Aa valve .actuating member mounted'on said burner to reci rocate lvertically and adapted to be actuate by any object placed'on said grid. i

3. In a structure of the classdescribed, the combination of a grid, a mainlburner disgosed below said grid and provided with a unsen tube and anozzle delivering thereto' and having a valve seat at lts inner end, a pilot burner operatively associated with said main burner, a pilot burner supply tube carrying said pilot burner and mounted to reciprocate longitudinally in said Bunsen tube `and having a lvalve at its outer end coacting withl said'valve seat in said nozzle to control the delivery of gas to the main burner and an inlet opening re istering with the nozzle opening when sai valve 1s closed permitting the passage of gas to the pilot burner, and a valve actuating member mounted on said burner to reci rocate vertically and adapted to be actuate by an object placed on said grid and having supportlng pins projecting at the sides of the pilot burner, the lower end of said actuatin member being bifurcated to embrace sai su ply tube and having a cam coacting with aterall projecting pins on saidtube to open the va ve.

4. In a structure of the class described, the combination of a grid, a main burner, a

gas supply nozzle having. a valve seat at itsA inner end, a pilot burner operatively associated with said main burner, a pilot burner supply tube mounted to reciprocate longitudinally and having a valve at its outer end and coacting with said valve seat insaid nozzle to control the delivery of gas to the main burner and an inlet opening communi-A cating with the nozzle opening when said valve is closed permitting the passage of gas to the pilot burnera valve actuating member mounted to reciprocate vertically` and adapted to be actuated by. an object placed on said grid andv having a cain actingon said supply tubi` to o en they-valve, a spring arranged to urgefsai valve to its seat, and

end, a pilot burner operatively' associated with said main burner, a pilot burner supply tube mounted to reciprocate longitudinally Vand having a valve at. its outer 'end coactin'g with said valve seat in said nozzle to control the delivery of gas to the main burner and.

an inlet openingl communicating with the nozzle opening when said valve is closed permitting the passage of gas to the pilot on said grid and having a cam acting on said supply tube to`o en the valve. v

In witness whereo ,-We have hereunto Set 15 our hands. v Y

' MAX. C. SHULEB;

EDWIN H. SHULER. 

